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Post Info TOPIC: Gradient index (GRIN) lenses


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Gradient index (GRIN) lenses
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Duke University engineers have created a new generation of lens that could greatly improve the capabilities of telecommunications or radar systems to provide a wide field of view and greater detail.
But the lens they fashioned doesn't look anything like a lens. While traditional lenses are made of clear substances - like glass or plastic - with highly polished surfaces, the new lens looks more like a miniature set of tan Venetian blinds. Yet its ability to focus the direction of electromagnetic rays passing through it dramatically surpasses that of a conventional lens, the engineers say.

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